Life Processes (Respiration) This is a short Test designed by Padhle.in. Unauthorized integrations are not allowed. Read the Privacy Policy and Terms and Conditions for more information. Rules - Every MCQ Question holds 1 points. There is no negative marking. One word question - Photosynthesis doesn’t occur in the night due to lack of ________ Stay Hydrated, and Let's Padhle! 1) The correct sequence of anaerobic reactions in yeast is Glucose (cytoplasm)→ Pyruvate (mitochondria)→ Ethanol + Carbon dioxide Glucose (cytoplasm)→ Pyruvate (cytoplasm)→ Lactic Acid Glucose (cytoplasm)→ Pyruvate (mitochondria)→ Lactic acid Glucose (cytoplasm)→ Pyruvate (cytoplasm)→ Ethanol + Carbon dioxide 2) Which is the correct sequence of air passage during inhalation? Nostrils →Larynx → Pharynx → Trachea → Lungs Nasal passage →Trachea → Pharynx→ Larynx → Alveoli Larynx → Nostrils→ Pharynx→ Lungs Nostrils → pharynx → Larynx → Trachea → Alveoli 3) The small pores present of leaf’s surface are called Stomata Chlorophyll Guard cells None of these 4) Lack of oxygen in muscles often leads to cramps among cricketers. This results due to: (a) conversion of pyruvate to ethanol (b) conversion of pyruvate to lactic acid (c) conversion of pyruvate to glucose (d) non conversion of glucose to pyruvate 5) Which of the following statements (s) is (are) true about respiration? (i) During inhalation, ribs move inward and diaphragm is raised (ii) In the alveoli, exchange of gases takes place, i.e., oxygen form alveolar air diffuses into blood and carbon dioxide from blood into alveolar air (iii) Haemoglobin has greater affinity for carbon dioxide than oxygen (iv) Alveoli increases surface area for exchange of gases (i) and (iv) (ii) and (iii) (i) and (iii) (ii) and (iv) 6) During respiration (in humans) exchange of gases take place in Trachea and larynx Alveoli of lungs Alveoli and throat Throat and larynx 7) How does oxygen travel in the bloodstream? RBC WBC Water Chlorophyll 8) Aquatic animals breathe at a slower rate than the terrestrial animals. True False 9) Respiratory pigment in human body is Chlorophyll Water Blood haemoglobin 10) What are the sites of respiration in plants? Roots Stems Leaves All of these 11) Respiration is same as breathing True False 12) Respiration is ________& _________ process. (i) Intracellular (ii) Extracellular (iii) Voluntary (iv) Involuntary (i) and (ii) (ii), (ii) and (i) (i) and (iv) None of these 13) During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the Cytoplasm Chloroplast Mitochondria Golgi body 14) ____________ are small pore on woody stems for the exchange of gases Stomata Lenticels Root hair None of these Ready to send
